METHOD OF TUNING A MAGNETOOPTICAL SYSTEM OF A PROTONOGRAPHIC COMPLEX Russian patent published in 2019 - IPC G01N23/04 H04N5/32 

FIELD: physics.

SUBSTANCE: use for adjustment of magnetooptical system of protonographic complex. Summary of invention consists in the fact that passing the proton beam through the object plane of the magnetooptical system, including the magnetic lenses and the collimator, with subsequent obtaining by means of the image recording system of the test object placed in the object plane, changing the magnetic lens current value to determine the optimum value, in which the magnetic induction of the magnetooptical system is matched with the energy of the proton beam, wherein the test object is a plate, the thickness of which is selected based on the condition of providing loss of energy of protons as it passes through it, not exceeding the spread of energy of protons in the incident beam, wherein the plate is made either solid and oriented so that the beam passes through its face, or with one or more rectangular slots and is oriented so that the beam passes through the slots, changing the value of current of the lenses is carried out with a pitch corresponding to the required accuracy of adjusting the magnetooptical system, selection of the optimum current value of the magnetic lenses is carried out based on profile of intensity of the proton beam, which are constructed from the obtained images of the test object in a direction perpendicular to the face or slits, in case if there is no intensity splash on the face or boundaries of the slots, the focusing plane of the magnetooptical system coincides with the object plane, and the value of current of the magnetic lenses at which the image was obtained is optimal.

EFFECT: considerable simplification of the method of tuning the magnetooptical system, as well as high speed of tuning.

1 cl, 11 dwg